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CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
$ in Thousands
Total
Preferred Stock [Member]
Common Stock [Member]
Additional Paid In Capital [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income [Member]
Total stockholders' equity     $ 21,509 $ 926,348 $ 737,922 $ (27,749)
Total stockholders' equity $ 1,786,453 $ 36,104 21,713 928,900 737,922 16,517
Balance at beginning of period at Dec. 31, 2015     21,509 926,348 737,922 (27,749)
Common stock issued as compensation     44 (44)    
Common stock withheld for taxes     (19) (571)    
Restricted stock grants     179 (179)    
Restricted stock forfeited     0 0    
Stock-based compensation       3,346    
Net income 45,297       45,297  
Dividends on preferred stock 0       0  
Other comprehensive income, net of tax 44,266         44,266
Balance at end of period at Jun. 30, 2016 1,786,453 36,104 21,713 928,900 783,219 16,517
Total stockholders' equity 1,786,453 36,104 21,713 928,900 783,219 16,517
Total stockholders' equity 1,786,243   21,745 931,856 830,928 (34,390)
Total stockholders' equity 1,786,243 36,104 21,596 931,856 883,129 (14,629)
Balance at beginning of period at Dec. 31, 2016 1,786,243   21,745 931,856 830,928 (34,390)
Common stock issued as compensation     27 (27)    
Common stock withheld for taxes     (33) (1,861)    
Restricted stock grants     95 (95)    
Restricted stock forfeited     (238) 238    
Stock-based compensation       3,599    
Net income 53,539       53,539  
Dividends on preferred stock (1,338)       (1,338)  
Other comprehensive income, net of tax 19,761         19,761
Balance at end of period at Jun. 30, 2017 1,859,910 36,104 21,596 933,710 883,129 (14,629)
Total stockholders' equity $ 1,859,910 $ 36,104 $ 21,596 $ 933,710 $ 883,129 $ (14,629)